Shulou(Shulou.com)06/01 Report--

For this resource pool management has been implemented step by step, and have done a detailed explanation, the following look at the entire sample code, easy to understand.

Package commonimport ("errors"io"sync"log") / / A secure resource pool, all managed resources must implement the io.Close interface type Pool struct {m sync.Mutex res chan io.Closer factory func () (io.Closer, error) closed bool} var ErrPoolClosed = errors.New ("the resource pool has been closed.") / / create a resource pool func New (fn func () (io.Closer, error), size uint) (* Pool, error) {if size

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